25490335504 has 10 divisors (see below), whose sum is σ = 49387525070. Its totient is φ = 12745167744.

The previous prime is 25490335489. The next prime is 25490335553. The reversal of 25490335504 is 40553309452.

It can be written as a sum of positive squares in only one way, i.e., 22998329104 + 2492006400 = 151652^2 + 49920^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796572969 + ... + 796573000.

It is an arithmetic number, because the mean of its divisors is an integer number (4938752507).

Almost surely, 2^25490335504 is an apocalyptic number.

It is an amenable number.

25490335504 is a deficient number, since it is larger than the sum of its proper divisors (23897189566).

25490335504 is a wasteful number, since it uses less digits than its factorization.

25490335504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593145977 (or 1593145971 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 25490335504 in words is "twenty-five billion, four hundred ninety million, three hundred thirty-five thousand, five hundred four".